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E. GRANSAULL.

TELEPHONE ATTACHMENT.

APPLICATION FILED SUNE so. 1915 Patentad May 20, 1919.

FIGDLL II." I IIIH'NI 1 ll wmm nvewfoz UNITED STATES PATENT QFFICE' EUGENE GRANEAULL, OF NEW YORK, N. Y.

TELEPHONE ATTACHMENT.

1'0 all whomit may concern:

Be it known that I, EUGENE GnANsAt Ln, a subject of the King of Great Britain, issiding at New York, in the county of New York and State of New York, have invented new and useful Telephone Attachments, consisting especially of improvements on the -United States patent issued to me January 13th, 1914, No. 1,084,328.

- My invention relates to improvements in telephone attachments in which a sound amplifier having a flexible tubular, member is attached tothe receiver of the telephone; in which-a weight approximately equal to the weight of the telephone receiver suspended by' a cord or the like from the switch-hook of the telephone; and in which.

a divided clamp, supporting a shelfor bracket adapted to receive the said weight,

engages the telephone post and the tele phone receiver. This clamp is attached in such manner 'thatthe receiver is held rigid in a position-admitting of the free movement of the switch-hook. The latter is held down only by the said I weight, raised by lifting the said weight'and keptraised by placing the wei t on the shelf attached'to the di vided 0 amp: Thus the telephonic connection is made by placing the weight on' the said shelf, and broken by simply taking or Thesound amplifier has atrumpet end,'a cup-shaped end and a tubular member, all

or part of which is constructed of flexible hose, connecting the said ends, The tubular member is continued part way through the Qupsh'apedend-and the part so protruding inside the cup is surrounded with cushioning. The mouth of the telephone receiver is' inserted in the cup end of the amplifier in such manner that the'cushioned' tubular. member protruding inside the cup end, is in juxtaposition to the diaphragm of the receiver without touching the same, and the amplifier is so attached to the receiver by any suitable means, of which I prefer the zig-zag holder of resilient material shown in the accompanying drawing.

It is'easy to perceive that the introduction of the flexible tubular member of the ampli fier will. admit of positioning the same and holding it in any position to suit the peculiar requirements of every user. This part is constructed of what is known as flexible hose, whih is common use for various Specification of Letters Patent.

Patented May 20, 1919.

. Application filed June so. "1915; Serial N 0. 37,17l1,

purposes. It. is preferably of 'inetal .forined 1n spiral and should be stiff enough tore tain any position into which it is put,

The ob ects of my improvements are similar to those stated in my earlier Patent,

No. 1,084,328 already'referred to, namely,

rupted conversations; fourth, to provide improvedmeans of bringing andkeeping in juxtaposition 'toth'eear of the speaker when in the act of talking into the transmitter of the telephone the trumpet end of'the so'und:

amplifierattuched so "the receiver, without requiring the'use'of either of his hands for the purpose; fifth, to provide means .for amphfyingthe acoustic effects of the receiveryand to provide other improvements that will appear in the specifi'cation and claims below. i

iButI attain these objectsreadily ae ate:

simply v cdmpangi ngdrawinge, in which+ Figure 1' is a 'frontfelevation' the devices illustrated in the ac- .artly'in.

section showing the sound amplifi mounted desk telephone andtlie-inean of attaching it; the divided clamp fu iShed with 'a shelforbracket and engaging the ph ne. PM as w as ho d ng t e eceiver rigid and clearfof th'e'switch-hook:

the switch-hooku and down? the weight connected thereto dependin therefrom and restin'g'on the said shelf org racket.

Fig.2 isa plan view showing the clamp and" the shelf or bracket for the weight, attached to the clamp, Fig. 3 s a perspective view sho clamp.

sou

Fig. 5 shows in section the structure of the flexible hose used in the tubular member of the amplifier th' said shelf orbracket detached from the said I Fig. 415* an inverted pan View of a sna 0? ash serves" as one'mean'sof attaching the d-amp'lifier totlie telephone, receiver, h 

